Thümen, Fungi Austr. Exs.
F.K.A.E.J. de Thümen [1-1200]

USDA United States National Fungus Collections
Catalog #: BPI 557180
Thuemen s.n. 00 September 1871
Microsphaera alni var. divaricata Wallr.
Austria, Lower Austria, Krems